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| 滨海卤水区防渗墙护壁泥浆试验研究 | |
| 引用本文： | 王希,李旺林,张山,于涛,杨世明.滨海卤水区防渗墙护壁泥浆试验研究[J].中国农村水利水电,2013,0(1):119-121. |
| 作者姓名： | 王希 李旺林 张山 于涛 杨世明 |
| 作者单位： | 1. 济南大学资源与环境学院 2. 南水北调东线山东干线有限责任公司 |
| 摘 要： | 针对南水北调东线双王城水库防渗墙施工中存在地下卤水侵蚀泥浆和槽孔坍塌等问题，选择比重、失水率、pH及粘度作为评价泥浆性能的主要指标，进行了相同配比条件下卤水泥浆与淡水泥浆之间性能差异的试验研究，并通过正交试验研究了制浆材料膨润土和添加剂CMC、NaOH对卤水泥浆性能的影响，得出以下结论：（1）同淡水泥浆相比，卤水泥浆的比重、失水率较大，而pH值、粘度较低；（2）膨润土和CMC可增大卤水泥浆粘度及比重，降低失水率；（3）NaOH可增大卤水泥浆pH、比重及粘度，降低失水率；（4）该地区地下防渗墙卤水护壁泥浆的各组分最佳配比为卤水：膨润土：CMC：NaOH=1000：150：0.5：2，将配比卤水泥浆应用于工程实践，提高了泥浆性能，减少了槽孔坍塌，取得了良好的结果。 |
| 关 键 词： | 护壁泥浆 配比 卤水 |
| 收稿时间： | 2012-08-06 |
| 修稿时间： | 2012-08-23 |
Experimental Research on the Stabilization Slurry in the Brine Coastal Area |
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| Abstract: | According to the problems such as underground brine erosion mud and slot bore collapse in the construction of concrete cutoff wall of Shuangwangcheng Reservoir in the East-Route of South-to-North Water Transfer Project. This article choosed specific gravity, water loss rate, pH and viscosity as mud performance index and analysed the performance differences of the salt brine mud and fresh mud in the same formula condition. And through the orthogonal test, we studied the effects on brine mud properties of mading mud materials (bentonite, CMC and NaOH), therefore obtained the best ratio and the brine mud was applied in engineering practice. The results as followed: (1) compared with fresh water mud, the salt brine mud has the higher specific gravity and water loss rate, however has the lower pH and mud viscosity; (2) bentonite and CMC can increase viscosity and specific gravity of salt brine mud, reducing the water loss rate; (3) NaOH can increase the pH, specific gravity and viscosity of salt brine mud, reducing the water loss rate; (4) The best ratio of each component of the stabilization slurry of cutoff wall underground was, brine: bentonite: CMC: NaOH = 1000:150:0.5:2. This ratio was applied in engineering practice, which improved the mud performance, reduced the slot bore collapse and achieved good results. |
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